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quantconnect--lean/Algorithm.Python/CoarseTiingoNewsUniverseSelectionAlgorithm.py
T
Marco Grassi e823dfdfb7
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fix a typo, and remove all unnecessary semicolumns in Python (#5795)
2021-07-27 16:05:13 -03:00

69 lines
3.1 KiB
Python

# QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
# Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from AlgorithmImports import *
from QuantConnect.Data.Custom.Tiingo import *
### <summary>
### Example algorithm of a custom universe selection using coarse data and adding TiingoNews
### If conditions are met will add the underlying and trade it
### </summary>
class CoarseTiingoNewsUniverseSelectionAlgorithm(QCAlgorithm):
def Initialize(self):
'''Initialise the data and resolution required, as well as the cash and start-end dates for your algorithm. All algorithms must initialized.'''
self.SetStartDate(2014,3,24)
self.SetEndDate(2014,4,7)
self.UniverseSettings.FillForward = False
self.__numberOfSymbols = 3
self.AddUniverse(CustomDataCoarseFundamentalUniverse(self.UniverseSettings, self.CoarseSelectionFunction))
self._symbols = []
# sort the data by daily dollar volume and take the top 'NumberOfSymbols'
def CoarseSelectionFunction(self, coarse):
# sort descending by daily dollar volume
sortedByDollarVolume = sorted(coarse, key=lambda x: x.DollarVolume, reverse=True)
# return the symbol objects of the top entries from our sorted collection
return [ Symbol.CreateBase(TiingoNews, x.Symbol, x.Symbol.ID.Market) for x in sortedByDollarVolume[:self.__numberOfSymbols] ]
def OnData(self, data):
articles = data.Get(TiingoNews)
for kvp in articles:
news = kvp.Value
if "stocks drop" in news.Title.lower():
if not self.Securities.ContainsKey(kvp.Key.Underlying):
# add underlying we want to trade
self.AddSecurity(kvp.Key.Underlying)
self._symbols.append(kvp.Key.Underlying)
for symbol in self._symbols:
if self.Securities[symbol].HasData:
self.SetHoldings(symbol, 1.0 / len(self._symbols))
def OnSecuritiesChanged(self, changes):
changes.FilterCustomSecurities = False
self.Log(f"{self.Time} {changes}")
class CustomDataCoarseFundamentalUniverse(CoarseFundamentalUniverse):
def GetSubscriptionRequests(self, security, currentTimeUtc, maximumEndTimeUtc, subscriptionService):
us = self.UniverseSettings
config = subscriptionService.Add(TiingoNews, security.Symbol, us.Resolution, us.FillForward, us.ExtendedMarketHours, True, False, False, us.DataNormalizationMode)
return [ SubscriptionRequest(False, self, security, config, currentTimeUtc, maximumEndTimeUtc) ]